What is required for a squat depth to be considered valid in competitions?

For a squat to be considered valid in competitions, it is essential that the hip crease of the lifter is below the knees at the lowest point of the squat. This standard ensures that the lifter has achieved sufficient depth during the movement, aligning with the rules set forth by powerlifting organizations.

When the hip crease drops below the knee, it signifies that the lifter has fully engaged the required muscle groups and performed the squat correctly according to competition standards. This measurement is crucial for judging the lift, and referees make their decisions based on this specific criteria.

The other choices do not pertain to the conditions for valid squat depth. While straight legs, the stability of the bar, and wearing shoes may influence the performance of the lift and overall safety, they are not direct requirements for the squat to be deemed valid based on depth. Thus, the focus remains strictly on the alignment of the hip crease relative to the knees.